Vonage, Time Warner Top VoIP Survey

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Vonage Holdings Corp. and Time Warner Cable got high marks in a voice-over-Internet-protocol quality survey from Keynote Systems Inc., which found large gaps in service levels among VoIP providers.

Keynote said Vonage ranked as the most reliable service, scoring an 80 on a 0-100 scale. Time Warner was far ahead of any other provider as the most reliable network carrier, the company added. AT&T Corp.’s CallVantage led other providers in audio clarity, said Keynote, which placed VoIP calls themselves to gather survey results.

The study included AT&T, Packet8, Primus Lingo, Skype Technologies S.A., Verizon Communications Inc.’s Voicewing and Vonage in the New York and San Francisco areas. Calls from those companies were carried on AT&T, Sprint Corp. and UUNET networks, Keynote said. The company added that it also looked at last-mile call quality on SBC Communications Inc., Verizon, Time Warner and Comcast Corp. plant.

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